LEAN DUPLEX UNS S32304 by Taashvi Special Alloys
With great delight, Taashvi Special Alloys presents the revolutionary Lean Duplex UNS S32304, a material that is revolutionizing corrosion resistance and endurance in the alloys industry. Lean Duplex UNS S32304 is proof of Taashvi Special Alloys' dedication to quality. As a well-known participant in the metallurgical sector, they have continuously pushed the limits of innovation.
MATERIAL DESCRIPTION
Lean Duplex according to NORSOK M-120 MDS YD35 has an improved balanced chemistry of chromium, molybdenum and nitrogen content, resulting in a PRE value ≥ 28 and increased mechanical strength compared to the standard EN 1.4362 / UNS 32304. This grade outruns AISI 316L acc. to both EN 1.4404 & EN 1.4436 with respect to pitting corrosion resistance. Due to risk of embrittlement, duplex steels should not be used at temperatures above 250 – 325°C.
Applications
The main applications for EN 1.4362 / Lean Duplex UNS S32304 / EDX 2304 are for details with special requirements for high corrosion resistance.
S32304 is characterized by:
• Good resistance to stress corrosion cracking.
• Good resistance to pitting and crevice corrosion.
• High resistance to general corrosion.
• High mechanical strength.
• High resistance to erosion corrosion and corrosion fatigue.
Heat Treatment
Solution annealing at 1020 – 1100°C followed by water quenching.
Weldability
Very good.
Chemical Composition (Specific for Plates)
| Weight % | C | Mn | P | S | Si | Cr | Ni | Mo | N | Cu | PREN |
| Min. | 22,0 | 3,50 | 0,10 | 0,05 | 0,10 | 28 | |||||
| Max. | 0,030 | 2,00 | 0,035 | 0,015 | 1,00 | 24,0 | 5,50 | 0,60 | 0,20 |
PREN = % Cr + 3.3 % Mo + 16 % N ≥ 28
Reference Standards
General:
- PED 2014/68/EU Annex I section 4.3
- AD2000 W0 (W2/ W10)
- NACE MR0175/ISO 15156-3 and NACE MR0103/ISO 17945
Plate, sheet and coil:
-
ASTM A240, EN 10028-7, EN 10088-2, EN 10088-4, Norsok M-120 MDS YD35
Other products:
-
As per applicable ASTM and/or EN standards and Norsok M-120 MDS
Mechanical Properties (Typical)
| Yield strength Rp0.2, MPa |
Tensile strength Rm, MPa |
Elongation [%] |
Hardness [HB] |
Impact, Charpy-V, -46ºC [J] |
|
| PLATE CR (COIL) | ≥ 450 | 650-850 | ≥ 25 | ≥ 45 | |
| PLATE HR (COIL) | ≥ 450 | 650-850 | ≥ 25 | ≤ 290 | ≥ 45 |
| PLATE (QUARTO) | ≥ 450 | 650-800 | ≥ 25 | ≤ 290 | ≥ 45 |
| ANGLE BAR | ≥ 450 | ≥ 600 | ≥ 25 | ≤ 290 | ≥ 45 |
Plate Stock
| MEASUREMENTS | KG/PLATE |
| 1,5 X 1500 X 3000 mm | 54 |
| 2 X 1500 X 3000 mm | 72 |
| 2 X 2000 X 6000 mm | 192 |
| 3 X 1500 X 3000 mm | 108 |
| 3 X 1500 X 6000 mm | 216 |
| 3 X 2000 X 6000 mm | 288 |
| 4 X 1500 X 3000 mm | 144 |
| 4 X 1500 X 6000 mm | 288 |
| 4 X 2000 X 6000 mm | 384 |
| 5 X 1500 X 3000 mm | 180 |
| 5 X 1500 X 6000 mm | 360 |
| 5 X 2000 X 6000 mm | 480 |
| 6 X 1500 X 3000 mm | 216 |
| 6 X 1500 X 6000 mm | 432 |
| 6 X 2000 X 6000 mm | 576 |
| 8 X 1500 X 3000 mm | 297 |
| 8 X 1500 X 6000 mm | 593 |
| 8 X 2000 X 6000 mm | 791 |
| 10 X 1500 X 3000 mm | 371 |
| 10 X 1500 X 6000 mm | 742 |
| 10 X 2000 X 6000 mm | 989 |
| 12 X 1500 X 3000 mm | 445 |
| 12 X 1500 X 6000 mm | 890 |
| 12 X 2000 X 6000 mm | 1187 |
| 15 X 1500 X 3000 mm | 556 |
| 15 X 1500 X 6000 mm | 1112 |
| 15 X 2000 X 6000 mm | 1484 |
| 20 X 1500 X 3000 mm | 742 |
| 20 X 1500 X 6000 mm | 1483 |
| 20 X 2000 X 6000 mm | 1978 |
| 25 X 1500 X 3000 mm | 927 |
| 25 X 1500 X 6000 mm | 1854 |
| 25 X 2000 X 6000 mm | 2472 |
| 30 X 1500 X 3000 mm | 1112 |
| 30 X 1500 X 6000 mm | 2225 |
| 30 X 2000 X 6000 mm | 2966 |
| 35 X 1500 X 3000 mm | 1298 |
| 40 X 1500 X 3000 mm | 1483 |
| 40 X 2000 X 6000 mm | 3955 |
| 50 X 1500 X 3000 mm | 1854 |
| 50 X 2000 X 6000 mm | 4944 |
Hollow Section Stock
| MEASUREMENTS | KG/M |
| 50 X 50 X 4 mm | 5.96 |
| 60 X 60 X 4 mm | 7.25 |
| 80 X 80 X 5 mm | 12.13 |
| 100 X 100 X 6 mm | 17.76 |
| 120 X 120 X 6 mm | 21.60 |
| 150 X 100 X 6 mm | 23.02 |
| 150 X 150 X 6 mm | 27.36 |
| 200 X 200 X 8 mm | 49.43 |
| 250 X 250 X 8 mm | 61.95 |
Hot Rolled Angle Stock
| MEASUREMENTS | KG/M |
| 50 X 50 X 5 mm | 3.85 |
| 60 X 60 X 6 mm | 5.53 |
| 80 X 80 X 8 mm | 9.85 |
| 100 X 100 X 10 mm | 15.40 |
Unequal Angle Stock
|
MEASUREMENTS |
KG/M |
|
100 X 50 X 8 mm |
9.6 |
|
150 X 100 X 8 mm |
15.79 |
Coil Stock
| 1500 mm | 2000 mm |
|---|---|
| 1,5 mm | 3 mm |
| 2 mm | 4 mm |
| 3 mm | 5 mm |
| 4 mm | 6 mm |
| 5 mm | |
| 6 mm |
H-beam
| MEASUREMENTS |
| 100 X 100 X 6 X 8 mm |
| 150 X 150 X 8 X 10 mm |
| 200 X 200 X 8 X 12 mm |
| 250 X 250 X 10 X 15 mm |
| 300 X 300 X 10 X 15 mm |
| 350 X 350 X 12 X 20 mm |
Coil / Sheet /Plate Specification
Dimensions : ASTM, ASME, AISI, DIN, BIS
Thickness : 0.50mm - 100mm
Size : 1000 mm x 2000mm, 1220mm x 2440mm, 4' x 8', 1250mm x 2500mm, 1500mm x 3000mm to 6000mm, 2000mm x 4000mm to 6000mm
Finish : Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated)
Form : Shim Sheet, Perforated Sheet, Profile Cut,
Seamless & Welded Pipes & Tubes Specification
Specification : ASTM, ASME, DIN, NFA, JIS.
Thickness : 4.0mm - 100mm.
Pipe Size : 1/8” NB to 24” NB, 1/4” OD to 24” OD sizes.
Tube Size : 1/2" OD to 8" OD.
Length : Cut length, Fix length, Single Random, Double Random & Required Length.
Form : Round Pipes/Tubes, Square Pipes/Tubes, Rectangular Pipe/Tubes, Coiled Tubes, “U” Shape, Pancake Coils, Hydraulic Tubes.
End : Plain End, Beveled End, Threaded End.
Type : Seamless & Welded Pipes & Tubes.
Round Bar Specification
Dimensions : ASTM, ASME,AISI, API.
Size : 5 mm to 500 mm
Length : from 2.00mm to 6.35mm (0.078" to 0.25") dia.
Finish : Bright, Black, Polish, Forged
Form : Round Bar, Square, Hexagon
Condition : Cold Drawn & Polished Cold Drawn, Centerless Ground Bars & Polished
Other Services : Machining (CNC), Centerless Grinding (CG), Heat Treatment, Annealing, Pickling, Polish, Rolling, Forging, Cutting, Bending, Minor Fabrication
Seamless & Welded Pipes & Tubes Fittings Specification
Specification : ASTM, ASME, DIN, NFA, JIS.
Size : 1/8” NB to 24” NB, 1/4” OD to 24” OD sizes.
Form : Elbow, Tee, Reducer, Stub End, End Cap, Pipe Nipple, Weldolet,
End : Beveled End, Threaded. Plain End,
Type : Seamless & Welded Pipe & Tubes Fittings, Buttweld Fittings & Dairy Fittings.
